first_spec_class	second_spec_class	prob_first_spec_class	prob_second_spec_class	taxonomy	wavelength	author	ref	method
S				Bus	VIS	Bus	2002Icar..158..146B	SPEC
S	R	0.430000	0.320000	Mahlke	VIS	Mahlke	2022A&A...665A..26M	SPEC
S	S	0.5039	0.5039	Bus-Demeo	VIS	Sergeyev	2021A&A...652A..59S	PHOT